ChemInform Abstract: A Versatile and Efficient Synthesis of Bithiophene‐Based Dicarboxaldehydes from a Common Synthon.

Abstract Dibromide (I) is used as a convenient common synthon for the preparation of the title dicarboxaldehydes (IV), (VII), (X), and (XV), which represent promising electron‐rich building blocks for the development of arylenevinylene‐based organic semiconductors.